Improvement in window-sashes



`tical edge o f the sash.

UNITEE STATES PATENT yOEEKIeE.

ALEXANDER RUDOLPH, :OF NEW YORK, N. Y.

IMPROVEMENT IN WINDOW-SASHES.

Specification 'foi-,ning par of Letters Patent No. 207,305, dated August20,1878; application n July 1s, 187s.

-To all whom it may cmzcem Be itknown that I, ALEXANDER RUDOLPH, of thecity, county, and State of New York, have invented a new and ImprovedWindow- Sash, of which the following is a specification:

This invention relates to an improved reversible window-sash, which maybe locked in a vertical position whether reversed or not.

The invention consists inthe combination of a sash having projectionswitliguicle-pieces having countersink recesses and with a spring, all asis hereinafter more fully described.

In the accompanying drawing, Figure 1 represents a vertical longitudinalcentral section ot a sash-frame, showing the lower sash pro- 'vided withmy improvement. Fig. 2 is a de Vtail vert-ical llongitudinal''centralsection of part of a sash and frame. Fig. 3is a vertical transversesection on the liuew, Fig. 1, showing the sashes swung into ahorizontalposition; and Fig. 4 is a detail edge view ot' one of the slidingguidepieces. t

Similar letters of reference indicate corresponding. parts in all thefigures. rjhe letter A represents a sash-frame of the usualconstruction, and adapted to receive sliding sashes. B B are the twosashes sliding in the frame A. These sashes are made somewhat narrowerthan the-inner horizontal f diameter of the sash-frame, 1n order t'oallow a guide-piece, a, to be placedagainst each ver- These guide-piecesare at their middle connected to the stiles lof the sashes B by pivotsb, that enter the middle of Vthe stiles. V-

The sashes, with their twoguide-pieccs afa, occupy the entir'ewidthofthe frame A, inthe manner sashes usually tvtheir frames. That edge ofeach of the-guide-peees avawhich comes in contact wit A is grooved toreceive the end of the cord c, that passes over a pulley and` holds thecounterpoisefweight d, in the ordinary manner.

A spring, e, (shown in Fig. 4,) is placed into the groove of theguide-piece a 'around the pin b, and presses `such guidepiece against fthe sash and prevents d'raftat the contiguous edges.

the'jamb'of the frame.:

' fhavingthe countersunk recesses 7L h', and with The sashes B, withtheir guide-pieces a a,

can slide up and down in the frame A in the pivots b, as indicated inFig. 3, or be completely reversed, so as to brin g the outer side of thesash into the roolu, and vice versa. In this way bot-l1 sides of thesashes may be conveniently cleaned Jfrom the room', whereupon the sashesmay be swung back into their normal position.

yIt will be observed that while the sashes are thus revolved, theguide-pieces a do not partake in the movement, but always remain intheir vertical position at the edges ofl the sashes.

In order to prevent the sashesB .from spontaneouslyassuming an inclinedor horizontal position, I provide that edge of each guidepieceawhich islopposite to the stile ,withtwo countersuuk recesses, h h', equidistantfrom -thepivot b, and I also provide the stiles with two corre ondingprojecting heads, g g', as shown. e spring c will press the heads g1g'into, their recesses, and thusretain the sash in place; bt when thesashis 4to be turneha slight pressure on the sash will cause thepriu g e toyield, and the' projections g g fwill leave the recesses. When thesashesareeversed the Vprojection g will enter the recess h', andtheprojectiong' will enter the recess h, thus securely holding lthesashes slocked in a verti-l lcal position whether reversed or not.

' Instead of providingthe sashes with the projections gv g andtheguide-pieces'awith the recesses It h',.the sashes may; of course,be`provided with'theireesses andthe gnidepiec'e's` .with theprojectionsy 4- A I claiml 'The combination of the sash B, which hasthevprojections g-gf, with the guide-pieces a a,

the springs e, substantially as auditor the pur- `pose herein shown anddescribed. y ALEXANDER RUDOLPH.

Witnesses; f

T. B. MosHEn, F. v. BRIEsEN.'

